IN DEFENCE OF THE INTRINSIC DEFLECTION
Open Access
- 1 January 1962
- Vol. 24 (1) , 55-60
- https://doi.org/10.1136/hrt.24.1.55
Abstract
The intrinsic deflection of Lewis has been variously defined and has been rejected by some as an indication of activity beneath an electrode on the surface of the heart. The use of intracellular electrodes, a surrounding wire loop electrode, and fast recording speeds has, however, shown that the surface electrocardiogram does, in fact, present a negative deflection that is produced by immediately subjacent cells and which may, therefore, correctly be termed "intrinsic". It is more marked on the left than on the right due to the electric field generated by the heart as a whole. The importance of this finding relates to the possibility of the existence of appreciable intrin-sicoid deflections in precordial leads.This publication has 19 references indexed in Scilit:
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